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BOSTON MARATHON 2025

Bjorn Strumann

Bib: 28543•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M50-54)
#0 / 1996
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:29/mi
26:21
↑ 97↓ 3451.5%
10K· 6.21 mi
8:25/mi
52:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:35/mi
1:19:08
↑ 67↓ 78
20K· 12.43 mi
8:26/mi
1:45:21
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:50:58
↑ 19↓ 370.5%
25K· 15.53 mi
8:27/mi
2:11:27
↑ 66↓ 880.2%
30K· 18.64 mi
8:29/mi
2:37:49
↑ 181↓ 1480.2%
20M
8:31/mi
2:49:24
↑ 64↓ 500.2%
21M
8:30/mi
2:57:54
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
3:04:25
↑ 17↓ 861.7%
23M
8:17/mi
3:14:47
↑ 23↓ 630.6%
24M
8:01/mi
3:22:48
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:29:23
↓ 200.3%
25.2M
8:42/mi
3:32:23
↑ 13↓ 160.2%
Finish· 26.22 mi
7:43/mi
3:40:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:50:58
Pace8:28 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:49:17
Pace8:20 /mi
📊Negative Split: 1.5% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:46:2426:218:2926:21
8:29
-
10K
6.21 mi12:12:3252:298:2726:08
8:25
-0:04
15K
9.32 mi12:39:111:19:088:2926:39
8:35
+0:10
20K
12.43 mi13:05:241:45:218:2926:13
8:26
-0:09
Half
13.11 mi13:11:011:50:588:285:37
8:14
-0:12
25K
15.53 mi13:31:302:11:278:2820:29
8:27
+0:13
30K
18.64 mi13:57:522:37:498:2826:22
8:29
+0:02
20M
20.00 mi14:09:272:49:248:2811:35
8:31
+0:02
21M
21.00 mi14:17:572:57:548:288:30
8:30
-0:01
35K
21.75 mi14:24:283:04:258:296:31
8:43
+0:13
23M
23.00 mi14:34:503:14:478:2810:22
8:17
-0:26
24M
24.00 mi14:42:513:22:488:278:01
8:01
-0:16
40K
24.85 mi14:49:263:29:238:256:35
7:42
-0:19
25.2M
25.20 mi14:52:263:32:238:263:00
8:42
+1:00
Finish
26.22 mi15:00:183:40:158:247:52
7:43
-0:59

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

7:42 /mi

Average Pace

8:24 /mi

Slowest Pace

8:43 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:51:17

51% of race

Time at Steady Pace

1:48:58

49% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:24 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:46:2426:218:2926:21
8:29
#19776
10K
6.21 mi12:12:3252:298:2726:08
8:25
#19505
15K
9.32 mi12:39:111:19:088:2926:39
8:35
#19594
20K
12.43 mi13:05:241:45:218:2926:13
8:26
#19127
Half
13.11 mi13:11:011:50:588:285:37
8:14
#19023
25K
15.53 mi13:31:302:11:278:2820:29
8:27
#18669
30K
18.64 mi13:57:522:37:498:2826:22
8:29
#17886
20M
20.00 mi14:09:272:49:248:2811:35
8:31
#17579
21M
21.00 mi14:17:572:57:548:288:30
8:30
#17166
35K
21.75 mi14:24:283:04:258:296:31
8:43
#17144
23M
23.00 mi14:34:503:14:478:2810:22
8:17
#16807
24M
24.00 mi14:42:513:22:488:278:01
8:01
#16552
40K
24.85 mi14:49:263:29:238:256:35
7:42
#16235
25.2M
25.20 mi14:52:263:32:238:263:00
8:42
#16131
Finish
26.22 mi15:00:183:40:158:247:52
7:43
#15926
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi19776123381233819782(Top 70%)12403(Top 77%)12403(Top 621%)
10K6.21 mi3.10 mi19505+27112261+7712261+7719250(Top 68%)12164(Top 76%)12164(Top 609%)
15K9.32 mi3.11 mi19594-8912305-4412305-4419782(Top 70%)12403(Top 77%)12403(Top 621%)
20K12.43 mi3.11 mi19127+46712096+20912096+20917785(Top 63%)11517(Top 72%)11517(Top 577%)
Half13.11 mi0.68 mi19023+10412049+4712049+4717429(Top 61%)11368(Top 71%)11368(Top 570%)
25K15.53 mi2.42 mi18669+35411884+16511884+16516843(Top 59%)11033(Top 69%)11033(Top 553%)
30K18.64 mi3.11 mi17886+78311496+38811496+38814654(Top 52%)9905(Top 62%)9905(Top 496%)
20M20.00 mi1.36 mi17579+30711336+16011336+16013940(Top 49%)9424(Top 59%)9424(Top 472%)
21M21.00 mi1.00 mi17166+41311145+19111145+19110474(Top 37%)7612(Top 47%)7612(Top 381%)
35K21.75 mi0.75 mi17144+2211106+3911106+3916723(Top 59%)10497(Top 65%)10497(Top 526%)
23M23.00 mi1.25 mi16807+33710945+16110945+16111922(Top 42%)8204(Top 51%)8204(Top 411%)
24M24.00 mi1.00 mi16552+25510819+12610819+12611356(Top 40%)7847(Top 49%)7847(Top 393%)
40K24.85 mi0.85 mi16235+31710659+16010659+1608086(Top 28%)6048(Top 38%)6048(Top 303%)
25.2M25.20 mi0.35 mi16131+10410604+5510604+5510004(Top 35%)6980(Top 43%)6980(Top 350%)
Finish26.22 mi1.02 mi15926+20510494+11010494+11010854(Top 38%)7446(Top 46%)7446(Top 373%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

19782

Males

12403

M50-54

12403

5K→10K

3.1 - 6.2 mi

Top 68%
×5story building
+79ft-138ft

Overall

19250

Males

12164

M50-54

12164

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

19782

Males

12403

M50-54

12403

15K→20K

9.3 - 12.4 mi

Top 63%
×5story building
+106ft-86ft

Overall

17785

Males

11517

M50-54

11517

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

17429

Males

11368

M50-54

11368

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

16843

Males

11033

M50-54

11033

25K→30K

15.5 - 18.6 mi

Top 52%
×9story building
+181ft-148ft

Overall

14654

Males

9905

M50-54

9905

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13940

Males

9424

M50-54

9424

20M→21M

20.0 - 21.0 mi

Top 37%
×8story building
+106ft-24ft

Overall

10474

Males

7612

M50-54

7612

21M→35K

21.0 - 21.8 mi

Top 59%
×7story building
+17ft-86ft

Overall

16723

Males

10497

M50-54

10497

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11922

Males

8204

M50-54

8204

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11356

Males

7847

M50-54

7847

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

8086

Males

6048

M50-54

6048

40K→25.2M

24.9 - 25.2 mi

Top 35%
×1story
+13ft-16ft

Overall

10004

Males

6980

M50-54

6980

25.2M→Finish

25.2 - 26.2 mi

Top 38%
×2story building
+22ft-21ft

Overall

10854

Males

7446

M50-54

7446

Passing Analysis

Category:
Athletes Passed
4359
Passed By
509
Net Change
+3850
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19776
5K → 10K414143+271#19776#19505
10K → 15K168257-89#19505#19594
15K → 20K48518+467#19594#19127
20K → Half1106+104#19127#19023
Half → 25K36511+354#19023#18669
25K → 30K7874+783#18669#17886
30K → 20M3103+307#17886#17579
20M → 21M4141+413#17579#17166
21M → 35K7452+22#17166#17144
35K → 23M3414+337#17144#16807
23M → 24M2572+255#16807#16552
24M → 40K3170+317#16552#16235
40K → 25.2M1051+104#16235#16131
25.2M → Finish2127+205#16131#15926
TOTALS4359509+3850
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing